Is acquaintance fraud a policeman or a lawyer?

Call the police. If a party is defrauded by an acquaintance, he can immediately report to the police or report to the public security organ where the case occurred, and submit evidence materials such as transfer records and chat records to prove the fact of fraud. The public security organ will review the report materials, and if it thinks that there are criminal facts that need to be investigated for criminal responsibility after review, it should file a case, so the acquaintance fraud is handled by the police.